CN204483336U - Stair climbing draw-bar box - Google Patents
Stair climbing draw-bar box Download PDFInfo
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- CN204483336U CN204483336U CN201520110264.2U CN201520110264U CN204483336U CN 204483336 U CN204483336 U CN 204483336U CN 201520110264 U CN201520110264 U CN 201520110264U CN 204483336 U CN204483336 U CN 204483336U
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Abstract
The utility model stair climbing draw-bar box is provided with stair-climbing device, this device forms primarily of stair climbing pedal, stair climbing pedal is fan-shaped, small end has an axis hole, stair climbing pedal is movably connected on the side of casing through this axis hole by turning cylinder, the stair climbing pedal moving axis that can rotate rotates and rotational plane is parallel with side, each side has a stair climbing pedal at least, stair climbing pedal on two sides symmetry.During stair activity, the horizontal plane that stair climbing pedal walks with ladder contacts with the intersecting lens of facade, pedal is that the strong point rotates with contact position, and the supporter of casing is between contiguous pedal and pedal, shift between pedal and roller, make draw-bar box constantly increase or the stair climbing work that declined, make it have stair climbing function.The features such as the utility model stair climbing draw-bar box has excellent stair climbing function, and stable movement, impacts little, and structure is simple, easy to use.
Description
Technical field
The utility model relates to a kind of draw-bar box, especially relates to a kind of stair climbing draw-bar box.
Background technology
Draw-bar box day by day in depth dissolves in daily life, has become travelling, indispensable article of going on business, for people's trip brings conveniently.But draw-bar box sometimes also brings embarrassment and even bothers, running into little terraced bank easily can also put on bank, and just really become the thing of trouble once run into multistage stair lifting rod case, dress thing the lighter still can deal with, otherwise want the hardship of receptor site fatigue.Moreover remaining great majority building under Fast Construction in today leans on stair upper and lower, this kind of situation can make moderate progress in future, but having a lot of building all the time adopts stair upper and lower, will improve the convenience that draw-bar box brings further for this reason, making it have stair climbing function becomes the problem needing to solve.Up to the present, people use the stair activity mode that shopping cart generally adopts, also with the instrument of tri-star wheel as stair activity on draw-bar box, but there is very large defect in this kind of purposes of triangle star-wheel, bumpy motion, impact large, but also the box body of draw-bar box that easily scratches, in addition very large on the appearance and size impact of draw-bar box, limited in the situations such as boarding, so use few, cannot promote; The research of this problem is many, but still without good plan, never has a draw-bar box with stair climbing function on the market.
Summary of the invention
In order to solve the deficiency in above-mentioned technology, the purpose of this utility model is to provide a kind of stable movement, impacts the little and simple and practical draw-bar box with stair climbing function.
For convenience, in the following description to facade and the horizontal plane of stair ladder step in three dimensions, can describe with the vertical line of the stair ladder step in two dimensional surface view and horizontal line, in other words these two kinds of statements are of equal value; The facade that in same three dimensions, stair ladder walks and the external corner intersection of horizontal plane, and the statement of the vertical line that in two dimensional surface view, stair ladder walks and horizontal intersection point is of equal value, and claim this intersection point to be the intersection point that ladder walks; The curved line two kinds that in the arcwall face that in three dimensions, stair climbing pedal is fan-shaped and two dimensional surface view, stair climbing pedal is fan-shaped states equivalence.For stair climbing pedal and roller, what its projection did not refer to perspective plane is all for perspective plane with place, side 3 plane.
In order to solve the problems of the technologies described above, the utility model stair climbing draw-bar box, comprises casing, roller, pull bar; Casing has two sides be parallel to each other, the front that a back side is parallel with it with, the end face that a bottom surface is parallel with it with, and casing is made up of case and case lid, and case and case lid have part to be connected a side, remainder is by slide fastener folding; Stair climbing draw-bar box is provided with stair-climbing device, this device forms primarily of stair climbing pedal, described stair climbing pedal is fan-shaped, small end has an axis hole, stair climbing pedal is movably connected on the side of casing through this axis hole by turning cylinder, the stair climbing pedal moving axis that can rotate rotates and rotational plane is parallel with side, each side has a stair climbing pedal at least, stair climbing pedal on two sides symmetry.
The stair-climbing device of stair climbing draw-bar box respectively only has a stair climbing pedal to form by two sides, the installation site of the turning cylinder of this stair climbing pedal is higher than the wheel shaft installation site of roller, when the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, the height of the curved line end points of stair climbing pedal is higher than the height intending the highest ladder step of climbing, the contact point that stair climbing pedal walks with ladder, the contact point projector distance in the horizontal direction walked with contiguous roller and ladder is less than the degree of depth that ladder walks, stair climbing pedal is positioned at the outside of contiguous roller, its rotational plane is parallel with the rotational plane of contiguous roller, and a part for its fan-shaped curved line is in the outside of box back surface, minimum point on the fan-shaped curved line of stair climbing pedal is higher than the minimum point of contiguous roller wheel rim, the projection of stair climbing pedal overlaps with the projection of contiguous roller, the roll shell of its overlapping region in backrest surface point of intersection and the outside incorporeity of pedal curved line.
The stair-climbing device of stair climbing draw-bar box is respectively made up of two or more stair climbing pedals two sides, the installation site of the turning cylinder of a stair climbing pedal I is higher than the wheel shaft installation site of roller bottom, when the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, topmost the height of the curved line end points of a stair climbing pedal II is higher than the height intending the highest ladder step of climbing, adjacent two stair climbing pedals are not coplanar and parallel, stair climbing pedal I is positioned at the outside of contiguous roller bottom, its rotational plane is parallel with the rotational plane of contiguous roller, the radius that distance between the turning cylinder of adjacent two stair climbing pedals is greater than stair climbing pedal adds the radius of a turning cylinder, stair climbing pedal rotates mutually non-interference, curved line all some outsides at box back surface of each stair climbing pedal, the projection of adjacent two stair climbing pedals overlaps, in overlapping region, the intersection point of two curved lines is in the outside of box back surface, some is overlapping for the projection of stair climbing pedal I bottom and the projection of contiguous roller, the roller wheel rim of overlapping region backrest surface point of intersection and the outside incorporeity of pedal curved line, minimum point on the fan-shaped curved line of stair climbing pedal I is bottom higher than the minimum point of contiguous roller wheel rim.
Improve as one of the present utility model, the utility model stair climbing draw-bar box, the fan-shaped central angle of its stair climbing pedal is less than 180 degree, and fan-shaped is equipped with counterweight, and in a free state, fan-shaped another side raises up.While the area reducing stair climbing pedal, make the working morphology of stair climbing pedal constant by arranging counterweight.
As the one improvement of the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides; When the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, the height of the upper extreme point of the height at the turning cylinder center of stair climbing pedal and the curved line of stair climbing pedal is higher than the height intending the highest ladder step of climbing, and the curved line of part stair climbing pedal and the upper extreme point of curved line are positioned at the outside of back side plane.Thus the intersection point making the curved line of stair climbing pedal directly walk with ladder contacts, stair climbing pedal rotates around this intersection point, can not roll, thus almost do not impact on facade, and casing does not contact with stair simultaneously, effectively prevent the scratch to casing.
The projection of stair climbing pedal overlaps with the projection of contiguous roller, and the intersection height between the roller wheel rim of its overlapping region backrest surface and pedal curved line is lower than the height at roller shaft center.Both avoided impacting, protected roller shaft again.
As the one improvement of the utility model stair climbing draw-bar box that stair-climbing device is respectively made up of two or more stair climbing pedals two sides; The fan-shaped radius of the stair climbing pedal of top is greater than the fan-shaped radius of the stair climbing pedal of adjacent lower edge, and the stair climbing pedal of top is positioned at the outside of the stair climbing pedal of adjacent lower edge; When the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, the fan-shaped radius that distance between the turning cylinder of adjacent two stair climbing pedals is greater than following stair climbing pedal adds the turning cylinder radius of the stair climbing pedal of top, this satisfies mutually non-interference condition, the projection of adjacent two stair climbing pedals overlaps, and the intersection height of its overlay region backrest surface two curved line is lower than the height at the turning cylinder center of a following stair climbing pedal; Thus it is more smooth-going to make the rotational support body of casing transfer to another stair climbing pedal from a stair climbing pedal, and only rotates and do not roll, thus almost do not impact.The projection of a stair climbing pedal I and the projection of roller overlap bottom, the roller wheel rim in its overlapping region and between pedal curved line the height of the intersection point of backrest surface lower than the height at roller shaft center, avoid like this impacting, and protect roller shaft.
As the stair-climbing device of the utility model stair climbing draw-bar box one collection mode, when not using, by stair climbing pedal rotate to arc upwards, whole stair climbing pedal is positioned at described lateral side regions, and fixes with pin.Improve practicality and convenience.
One as the stair-climbing device collection mode of the utility model stair climbing draw-bar box is improved, the turning cylinder of stair climbing pedal is substituted with bolt, bolt head has a handle being convenient to hold, during use, fast stair climbing pedal is connected on the side of casing with bolt, when not using, fast bolt is unloaded, take off stair climbing pedal and put into the bag being located at the back side or front in the lump.Utilize this structure can admittedly get stair climbing pedal fast, do not affect the contour structures of existing draw-bar box simultaneously, convenience is also practical.
As the one improvement of the utility model stair climbing draw-bar box that stair-climbing device is respectively made up of two or more stair climbing pedals two sides, with the connecting plate of two rectangles, the several stair climbing pedals on each side being clipped in central authorities connects as a whole, and keep the relativeness between adjacent stair climbing pedal, form stair climbing pedal array, the intersection point of the overlapping region between the projection of each stair climbing pedal is all in the outside of connecting plate, topmost all be connected with connecting plate by axle sleeve with stair climbing pedal rotating shaft place bottom, connecting plate has coaxial through-hole at axle sleeve correspondence position, the side backrest surface of casing is while there are two screws, the distance of holes and two through holes on stair climbing pedal array are apart from equal, stair climbing pedal array is connected on side, when the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, the outside of the curved line intersection point of the projection overlapping region of adjacent two stair climbing pedals place plane all overleaf, the projection of a stair climbing pedal and the projection of roller overlap bottom, in overlapping region, the intersection point of backrest surface is outside casing, during use, be connected on side fast with bolt by stair climbing pedal array, when not using, rapid removal bolt, takes off stair climbing pedal array and puts into the bag being located at the back side or front in the lump.This improvement, by integrated as a whole for multiple stair climbing pedal, is more convenient for admittedly getting stair-climbing device fast.
As the improvement of the stair-climbing device to the utility model stair climbing draw-bar box, stair climbing pedal is substituted by stair climbing roller, and stair climbing roller is circular wheel.Adopt the stair climbing roller with radius circular to substitute fan-shaped stair climbing pedal, make it without the reset issues of stair climbing pedal.This structure being improved to stair-climbing device provides another kind of selection.
The utility model stair climbing draw-bar box adopts fan-shaped stair climbing pedal as stair-climbing device, and structure is very simple.During stair activity, the horizontal plane that stair climbing pedal walks with ladder contacts with the intersecting lens of facade, pedal is that the strong point rotates with contact position, and the supporter of casing is between contiguous pedal and pedal, shift between pedal and roller, make draw-bar box constantly increase or the stair climbing work that declined, make it have stair climbing function, ladder step is highly less and can not the problem of stair climbing relatively because roller diameter to solve draw-bar box.Due between the contiguous pedal of the utility model stair climbing draw-bar box and pedal, all overlap between pedal and roller, ensure that supporter shifts steady, greatly reduce or avoid impact.Because stair climbing pedal has part outside overleaf, so the back side does not contact with stair all the time in stair climbing process, avoid scratch box body of draw-bar box; And when not using, have different stair-climbing device collection modes, very convenient and practical.
The features such as thus the utility model stair climbing draw-bar box has excellent stair climbing function, and stable movement, impacts little, and structure is simple, easy to use.
Accompanying drawing explanation
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:
Fig. 1 is the 2 and 3 dimensional organization schematic diagram of the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3.
Fig. 2 is that the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 is gone upstairs one of schematic diagram.
Fig. 3 is that the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 is gone upstairs schematic diagram two.
Fig. 4 is that the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 is gone downstairs one of schematic diagram.
Fig. 5 is that the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 is gone downstairs schematic diagram two.
Fig. 6 is that the stair climbing pedal collection of the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 is illustrated and stair climbing pedal gets (collection) schematic three dimensional views fast admittedly.
Fig. 7 is that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 and to go upstairs one of schematic diagram lower than the utility model stair climbing draw-bar box of ladder step height in the turning cylinder center of stair climbing pedal.
Fig. 8 is that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 and to go upstairs schematic diagram two lower than the utility model stair climbing draw-bar box of ladder step height in the turning cylinder center of stair climbing pedal.
Fig. 9 is that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 and to go downstairs one of schematic diagram lower than the utility model stair climbing draw-bar box of ladder step height in the turning cylinder center of stair climbing pedal.
Figure 10 is that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3 and to go downstairs schematic diagram two lower than the utility model stair climbing draw-bar box of ladder step height in the turning cylinder center of stair climbing pedal.
Figure 11 is the utility model stair climbing draw-bar box structure schematic diagram that stair-climbing device is respectively made up of 2 stair climbing pedals two sides 3.
Figure 12 is that the utility model stair climbing draw-bar box that stair-climbing device is respectively made up of 2 stair climbing pedals two sides 3 is gone upstairs one of schematic diagram.
Figure 13 is that the utility model stair climbing draw-bar box that stair-climbing device is respectively made up of 2 stair climbing pedals two sides 3 is gone upstairs schematic diagram two.
Figure 14 is that the utility model stair climbing draw-bar box that stair-climbing device is respectively made up of 2 stair climbing pedals two sides 3 is gone downstairs one of schematic diagram.
Figure 15 is that the utility model stair climbing draw-bar box that stair-climbing device is respectively made up of 2 stair climbing pedals two sides 3 is gone downstairs schematic diagram two.
Figure 16 is two sides 3 one of schematic diagrames that respectively have 2 stair climbing pedals and the dynamic the utility model stair climbing draw-bar box of not rolling is gone upstairs.
Figure 17 is two sides 3 schematic diagrames two that respectively have 2 stair climbing pedals and the utility model stair climbing draw-bar box do not rolled is gone upstairs.
Figure 18 is two sides 3 one of schematic diagrames that respectively have 2 stair climbing pedals and the utility model stair climbing draw-bar box do not rolled is gone downstairs.
Figure 19 is two sides 3 schematic diagrames two that respectively have 2 stair climbing pedals and the utility model stair climbing draw-bar box do not rolled is gone downstairs.
Figure 20 is the utility model stair climbing draw-bar box schematic diagram that the signal of stair climbing pedal array structure and stair-climbing device are respectively made up of a stair climbing pedal array two sides 3.
Figure 21 is the utility model stair climbing draw-bar box schematic diagram that stair-climbing device is made up of stair climbing roller.
The utility model stair climbing draw-bar box schematic diagram of Figure 22 to be roller be universal wheel.
Detailed description of the invention
The utility model stair climbing draw-bar box comprises casing, roller 1, pull bar 4; The front that casing has the back side 2,3, one, two sides be parallel to each other parallel with it with one, the end face that a bottom surface is parallel with it with, casing is made up of case and case lid, and case and case lid have part to be connected a side 3, all the other are by slide fastener 5 folding.The roller of general draw-bar box has two, also has four, and the utility model preferably only has the plane roller 1 of two backrest surfaces 2; The utility model stair climbing draw-bar box is provided with stair-climbing device, this device forms primarily of stair climbing pedal, stair climbing pedal is fan-shaped, small end has an axis hole, stair climbing pedal is movably connected on the side 3 of casing through this axis hole by turning cylinder, the stair climbing pedal moving axis that can rotate rotates and rotational plane is parallel with side 3, each side 3 has a stair climbing pedal at least, stair climbing pedal on two sides 3 symmetry.Just each side 3 only has a stair climbing pedal respectively below and have two kinds of versions of two and above stair climbing pedal to enumerate embodiment.
One, the embodiment of the stair-climbing device draw-bar box that respectively only has a stair climbing pedal to form by two sides 3 is as follows.
From the structure (the diagram stair climbing pedal 20 bias state that raises up is exaggerated a little, only illustrates, remaining with) that Figure 1 shows that the utility model stair climbing draw-bar box that stair-climbing device respectively only has a stair climbing pedal to form by two sides 3.Stair climbing pedal 20 is fan-shaped, its radius size is by the impact intending stair climbing ladder step height and the degree of depth, too little its curved line termination height that makes of radius highly then can not realize stair climbing function lower than ladder step, make again too greatly the contact point that stair climbing pedal 20 walks with ladder, the terraced degree of depth walked is greater than with the intersection point distance in the horizontal direction of the projection of contiguous roller 1 with the projection of stair climbing pedal 20, thus stair climbing pedal 20 can not be returned to original state when occurring upstairs, thus stair climbing again cannot be continued, the projection of the projection and roller 1 that simultaneously also will take into account stair climbing pedal 20 will overlap, so the fan-shaped radius of stair climbing pedal 20 should make the height of its curved line end points be greater than ladder step height, make the contact point that stair climbing pedal 20 walks with ladder again, the horizontal line contact point projector distance in the horizontal direction walked with contiguous roller 1 and ladder is less than the terraced degree of depth walked and (obviously meets the contact point that stair climbing pedal 20 walks with ladder, the terraced degree of depth walked is less than with the intersection point distance in the horizontal direction of the projection of contiguous roller 1) with the projection of stair climbing pedal 20.The contact point that certain stair climbing pedal 20 walks with ladder, with the projection of stair climbing pedal 20 and the intersection point distance in the horizontal direction of the projection of contiguous roller 1, with draw-bar box upper downstairs time relevant with the angle of horizontal plane, larger then its projector distance of angle is less, and generally this angle is in 60-70 degree left and right.The fan-shaped central angle of the utility model preferred stair climbing pedal 20 is less than 180 degree, and in the larger counterweight 26 of the configuration proportion that stair climbing pedal 20 is fan-shaped, the geometric center of stair climbing pedal 20 is not overlapped with its center of gravity, and center of gravity is partial to counterweight side; Stair climbing pedal 20 can have various structures, the utility model preferably its structure is plane, thickness is identical with roller 1, an axis hole identical with the wheel shaft diameter of roller 1 is established at small end, its material can be aluminium alloy, also can be the other materials of light-high-strength, the engineering plastics that the utility model is preferably identical with roller 1.
The preferred stair climbing pedal 20 of the utility model in the installation site of side 3 is, when the angle of draw-bar box and horizontal plane is the angle of stair activity, the utility model is for the free state of draw-bar box horizontal by about 65 degree, the height of the centre-height of turning cylinder 21 and the curved line upper extreme point of stair climbing pedal 20 is higher than the height intending cat ladder step, and the contact point that stair climbing pedal 20 walks with ladder, the contact point projector distance in the horizontal direction walked with contiguous roller 1 and ladder is less than the degree of depth that ladder walks; The curved line of part stair climbing pedal 20 and the upper extreme point of curved line are positioned at the outside of the back side 2 plane; In the simultaneously projection of stair climbing pedal 20 and the projection of roller 1, roller 1 part having below partly and be close to of stair climbing pedal 20 is overlapping, the roller wheel rim of overlapping region in backrest surface 2 point of intersection and the outside incorporeity of pedal curved line, that is this intersection point is in the outside of casing, and intersection point preferably between the roller wheel rim of its overlapping region backrest surface 2 and pedal curved line is lower than the height at roller 1 wheel shaft center; The minimum point of the fan-shaped curved line of stair climbing pedal 20 is higher than the minimum point of roller 1 wheel rim.Corresponding position on the case side 3 of casing is provided with the installing hole of turning cylinder 21, this hole is located in the structure in casing, this structure can select the light metal engineering plastics that intensity is high as aluminium alloy or light weight to make, turning cylinder 21 is suitable with the axis hole on stair climbing pedal 20 small end, for matched in clearance, and stair climbing pedal 20 turning cylinder 21 is arranged on the side 3 of draw-bar box, axis hole and turning cylinder 21 form sliding bearing, stair climbing pedal 20 moving axis 21 that can rotate rotates, and rotational plane is positioned at the outside of roller 1 plane and parallel with side 3, under free state stair climbing pedal 20 deadweight effect under while raise up, the height of the curved line upper extreme point of stair climbing pedal 20 is made to be greater than the height of ladder step, the side 3 that two of the utility model stair climbing draw-bar box are parallel respectively there is a stair climbing pedal 20 and full symmetric.
Fig. 2, Fig. 3 display go upstairs 6 process, the pull bar of draw-bar box at front and roller 1 rear.When the stair-climbing device of the utility model stair climbing draw-bar box just walks contact with stair ladder, turning cylinder 21 center of stair climbing pedal 20 and curved line upper extreme point are on this ladder step height, the intersection point of this ladder step and a bit contacting of the following curved line of upper extreme point, now the supporter of box body of draw-bar box is roller 1, and the horizontal plane being supported for previous stair ladder step of whole draw-bar box, after this under the effect dragging tractive force, the supporter of box body of draw-bar box becomes stair climbing pedal 20, and whole draw-bar box be supported for by the intersection point of this stair ladder step climbed, this point is exactly the strong point of whole draw-bar box, corresponding points on stair climbing pedal 20 curved line be in contact with it are by the strong point, under the effect of external force, stair climbing pedal 20 will rotate clockwise around the strong point, the small end of stair climbing pedal 20 is up thereupon rotating, thus box body of draw-bar box is also up, in the process, constant by the relative position of the strong point on stair climbing pedal 20, when stair climbing pedal 20 around the strong point rotate make box body of draw-bar box go upward on stair climbing pedal 20 curved line by the strong point, project with stair climbing pedal 20 curved line and the projection intersection point of roller 1 overlaps critical time, the wheel rim of the projection and roller 1 that are namely turned to stair climbing pedal 20 curved line by the strong point project position of intersecting point time, the supporter continuing box body of draw-bar box more a little becomes roller 1 from stair climbing pedal 20, now, 20, stair climbing pedal is by the effect of gravity, and stair climbing pedal 20 rotates counterclockwise under gravity, the state until affranchise, realize automatically reseting of stair climbing pedal 20, meanwhile also be transferred on roller 1 by corresponding points stair climbing pedal 20 walking the strong point with ladder by the strong point and walk the corresponding points of the strong point with ladder, to rotate clockwise around the strong point at the effect bottom roller 1 of external force, the wheel shaft of roller 1 is up thereupon rotating, thus box body of draw-bar box is also up, until the horizontal line that roller 1 just walks with this ladder is tangent, this stair ladder step climbed up by draw-bar box, so far climbing of a ladder step is completed, , so repeatedly complete whole stair climbing work.
Fig. 4, Fig. 5 are that the utility model stair climbing draw-bar box is gone downstairs the signal of process, in the process, the roller 1 of draw-bar box at front and pull bar rear.At the initial state that pushing drawing rod case is gone downstairs, the facade that the vertical plane crossing wheel shaft of roller 1 just walks with stair ladder overlaps, the strong point of draw-bar box is the intersection point of this ladder step, and point corresponding with it on roller 1 is by the strong point, rotate counterclockwise around the strong point at the effect bottom roller 1 of thrust and gravity, the wheel shaft of roller 1 rotates and declines, and makes box body of draw-bar box descending, in the process, constant by the relative position of the strong point on roller 1, roller 1 around the strong point rotate make box body of draw-bar box come downwards on roller 1 by the strong point, when overlapping with the projection of roller 1 and the position of stair climbing pedal 20 arc-shaped projection intersection point, be in box body of draw-bar box supporter shift critical, give External Force Acting again, the supporter of box body of draw-bar box becomes stair climbing pedal 20 from roller 1, also be transferred on stair climbing pedal 20 by corresponding points roller 1 walking the strong point with ladder by the strong point simultaneously and walk the corresponding points of the strong point with ladder, under the effect of external force, stair climbing pedal 20 will rotate counterclockwise around the strong point, the turning cylinder 21 of stair climbing pedal 20 is descending thereupon rotation, thus box body of draw-bar box is also descending, in the process, constant by the relative position of the strong point on stair climbing pedal 20, until roller 1 drops to the plane contact walked with next one ladder, supporter shifts as roller 1 again, motion stair climbing pedal 20 rotates clockwise under gravity a little again, automatically reset, so far this stair ladder step complete under draw-bar box, complete the decline of a ladder step.So repeatedly complete whole process downstairs.
In order to the effect of the above-mentioned preferred version of the utility model is better described, the fan-shaped central angle of stair climbing pedal 20 is now selected to be greater than 180 degree, and turning cylinder 21 centre-height of stair climbing pedal 20 is lower than the height intending stair climbing ladder step, with the overlay region intersection point of the roller 1 wheel shaft center higher than roller 1.Process is as shown in Figure 7, Figure 8 upstairs for it.Because turning cylinder 21 centre-height of stair climbing pedal 20 is lower than the height intending stair climbing ladder step, so first stair climbing pedal 20 walks with ladder is contact at its facade, i.e. tangent place, this position was the intersection point of the vertical line that the horizontal line of turning cylinder 21 walks with ladder, the intersection point that this intersection point walks lower than this ladder, under the effect that external force promotes, stair climbing pedal 20 will roll on facade, make the turning cylinder 21 of stair climbing pedal 20 up, thus make box body of draw-bar box up, first the segmental arc that stair climbing pedal 20 curved line rolls walks the top at the point of contact that vertical line contacts with ladder at it, the distance of rolling is the difference of the height of the intersection point that the height at the center of turning cylinder 21 walks with ladder, when the center being rolled into turning cylinder 21 is consistent with the intersection height that ladder walks, stair climbing pedal 20 will no longer roll, in the process, the vertical line that the strong point walks at ladder constantly changes, also constantly changed on the curved line of stair climbing pedal 20 by the strong point equally, after this stair climbing pedal 20 around this ladder walk intersection point rotate, make box body of draw-bar box continue up, until supporter transfer critical time, the position of this transfer is not in the point of intersection that the projection of stair climbing pedal 20 and roller 1 project, and be the right side of this intersection point, the position (owing to scheming little losing count of, but being understood that) when just in time roller 1 just and the terraced facade walked is tangent, after supporter transfer, stair climbing pedal 20 rotates counterclockwise under gravity to reset, because the wheel shaft center of at this moment roller 1 walks horizontal plane lower than ladder, so roller 1 will be done to roll clockwise around wheel shaft center on ladder step facade, until wheel shaft centre-height walks horizontal plane co-altitude with ladder, in the process, the facade that the strong point walks at ladder constantly changes, is constantly changed by the wheel rim of the strong point also roller 1 equally, this rear roller 1 rotates clockwise around the strong point, until the horizontal plane that roller 1 and this ladder walk is tangent, draw-bar box completes climbing of a ladder step, has continued whole stair climbing work like this.Fig. 9-Figure 10 is 6 process signals of going downstairs; The vertical plane crossing the wheel shaft center of roller 1 when just having started downstairs overlaps with the facade that ladder walks, the strong point is the intersection point of ladder step, rotate counterclockwise around the strong point at the effect bottom roller 1 of external force, its wheel shaft declines because rotating counterclockwise, and the casing of draw-bar box declines thereupon; When roller 1 turn to its facade just walked with ladder tangent time, the wheel shaft centre-height of roller 1 walks horizontal plane co-altitude with ladder; Roller 1 no longer rotates around the strong point, but roll counter-clockwise on the facade walked at ladder around its wheel shaft center, its wheel shaft continues to decline, the casing of draw-bar box continues to decline thereupon, until the intersection point that stair climbing pedal 20 and ladder walk contacts, it is stair climbing pedal 20 that supporter will be shifted by roller 1, and the transferring position of supporter also not in the point of intersection that projection and the roller 1 of stair climbing pedal 20 project, and is the right side of this intersection point; Then stair climbing pedal 20 rotates counterclockwise around the strong point (intersection point of ladder step), and the casing of draw-bar box continues to decline, when the centre-height of the turning cylinder 21 of stair climbing pedal 20 walks co-altitude with ladder; Stair climbing pedal 20 no longer rotates counterclockwise around the strong point, and the moving axis 21 that will rotate rolls on ladder step facade, contacts until roller 1 drops to the horizontal plane that walks of ladder below; Supporter shifts again as roller 1, and stair climbing pedal 20 resets, and completes the decline of a ladder step, has so continued whole process downstairs.Because turning cylinder 21 centre-height of stair climbing pedal 20 is lower than the height intending stair climbing ladder step, and with the overlay region intersection point of the roller 1 wheel shaft center higher than roller 1, thus upper downstairs time stair climbing pedal 20 and roller 1 facade that all walks at ladder on have a bit of rolling, time particularly downstairs, if misoperation easily can be accelerated in the speed of this bit of rolling, to go downstairs a little impact to draw-bar box, much smaller compared with the impact of the stair-climbing device such as this little impact and existing triangle planetary gear certainly.But in above-mentioned preferred version, because turning cylinder 21 centre-height of stair climbing pedal 20 is higher than the height intending stair climbing ladder step, and with the projection overlay region intersection point of the roller 1 wheel shaft center lower than roller 1, overcome this not enough, upper downstairs time stair climbing pedal 20 all only to rotate with roller 1 and without rolling, thus draw-bar box to be impacted hardly.
Two, the embodiment of the draw-bar box that stair-climbing device is respectively made up of two or more stair climbing pedals two sides 3 is enumerated below.
The stair-climbing device of the utility model stair climbing draw-bar box both can be that two sides 3 are respectively made up of two stair climbing pedals, also can be that two sides 3 are respectively made up of plural stair climbing pedal, the preferred stair-climbing device of the utility model is respectively made up of two stair climbing pedals two sides 3, and Figure 11 is its structural representation.The fan-shaped central angle of two stair climbing pedals is all less than 180 degree, and radius is identical, fan-shaped, counterweight 26 is housed, and makes the center of gravity of stair climbing pedal be partial to one side that counterweight 26 is housed, and two axis holes suitable with the turning cylinder of stair climbing pedal are set on each side 3 of the casing of draw-bar box, be provided with the supporting construction of axis hole in the side 3 of casing, the position of these two axis holes should make the wheel shaft installation site of installation site higher than roller 1 of the turning cylinder 23 of a following stair climbing pedal I 22, at draw-bar box horizontal by 65 degree of angles, during the state of namely stair activity, be arranged on side 3 by stair climbing pedal I 22 and stair climbing pedal II 24 with turning cylinder 23 and turning cylinder 25 respectively by axis hole, turning cylinder 25 centre-height of the stair climbing pedal II 24 in top and the height of curved line upper extreme point are higher than the height intending ladder stand step, arc all some outsides at box back surface 2 of stair climbing pedal I 22 and stair climbing pedal II 24, and the curved line upper extreme point of stair climbing pedal II 24 overleaf 2 outside, the radius that distance between the turning cylinder of adjacent two stair climbing pedals is greater than a stair climbing pedal adds the radius of a turning cylinder, the rotation of 360 degree, stair climbing pedal work is mutually non-interference, the projection of adjacent two stair climbing pedals overlaps, in overlapping region, the intersection point of two curved lines is in the outside of box back surface 2, the projection of following stair climbing pedal I 22 is with the projection of contiguous roller 1, having below of stair climbing pedal I 22 is partly overlapping with a part for contiguous roller 1, roller 1 wheel rim of overlapping region backrest surface 2 point of intersection and the outside incorporeity of pedal curved line, that is this intersection point is in the outside of casing, minimum point on following stair climbing pedal I 22 curved line is higher than the minimum point of contiguous roller 1 wheel rim, these two adjacent stair climbing pedals are not coplanar and be parallel to side 3, and following stair climbing pedal I 22 rotational plane is in the outside of the rotational plane of contiguous roller 1, and two planes are parallel.Stair-climbing device is adopted respectively to be made up of two stair climbing pedals two sides 3, the physical dimension of stair climbing pedal is reduced, stair climbing pedal II 24 and the terraced contact point walked of top, the contact point projector distance in the horizontal direction walked with contiguous roller 1 and ladder is smaller, usually the requirement being less than the ladder step degree of depth is met, even if this distance is greater than the ladder step degree of depth, do not affect automatically reseting of the stair climbing pedal II 24 of top yet.
Figure 12, Figure 13 are 6 signals of going upstairs, and when going upstairs, pull bar 4 is at front wheel 1 rear, and when draw-bar box has just started stair climbing, the intersection point that the curved line of stair climbing pedal II 24 has just walked with ladder contacts, and now the supporter of whole box body of draw-bar box is roller 1, external force further dilatory under, it is stair climbing pedal II 24 that the supporter of casing is shifted by roller 1, the strong point is the intersection point of ladder step, be the corresponding points that stair climbing pedal II 24 contacts with the strong point by the strong point, stair climbing pedal II 24 rotates clockwise around the strong point, the turning cylinder 25 of stair climbing pedal II 24 rises because of rotation, makes box body of draw-bar box thereupon up simultaneously, due to two stair climbing pedals radius equally, so the height of the curved line intersection point of these two stair climbing pedal projections should higher than turning cylinder 23 center of following stair climbing pedal I 22, when casing rise to stair climbing pedal I 22 with ladder walk facade contact time, it is stair climbing pedal I 22 that the supporter of casing is shifted by stair climbing pedal II 24, after supporter transfer, stair climbing pedal II 24 automatically resets under Gravitative Loads, the strong point is the vertical line of ladder step and the point of contact of stair climbing pedal I 22 arc, at this moment stair climbing pedal I 22 moving axis 23 that will rotate does clockwise rolling, the distance of rolling is the difference of the intersection height that the height at stair climbing pedal I 22 turning cylinder 23 center now walks with ladder, rolling makes casing up, the point walked when turning cylinder 23 center rising to stair climbing pedal I 22 and ladder is with time high, stair climbing pedal I 22 stops rolling and rotating clockwise around the intersection point that ladder walks, make casing up further, continue dilatory draw-bar box, when being overlapped with the projection of stair climbing pedal I 22 and the projection overlay region intersection point of roller 1 by the strong point, it is roller 1 that supporter is shifted by stair climbing pedal I 22, after supporter transfer, stair climbing pedal I 22 automatically resets under Gravitative Loads, if but stair climbing pedal I 22 and roller 1 overlay region intersection point are higher than the wheel shaft center of roller 1, then roller 1 will roll a bit of, and the transferring position of supporter is not also in overlay region point of intersection, the intersection point (strong point) that roller 1 walks around ladder rotates, thus makes casing up, until roller 1 just walk horizontal plane with ladder tangent, whole draw-bar box is climbed up this stair ladder and is walked.Repeat said process and complete stair climbing work.
Figure 14, Figure 15 are signal downstairs.Draw-bar box go downstairs 6 beginning time, the vertical plane at wheel shaft center crossing roller 1 overlaps with the facade that this ladder walks, and the strong point is the terraced intersection point walked; Rotate counterclockwise around the strong point at the effect bottom roller 1 of external force, the wheel shaft of roller 1 declines because of rotation, make casing also thereupon descending, when being overlapped with the projection of stair climbing pedal I 22 and the projection overlay region intersection point of roller 1 by the strong point on roller 1, it is stair climbing pedal I 22 that supporter is shifted by roller 1; Stair climbing pedal I 22 rotates counterclockwise around the strong point, and its turning cylinder 23 declines because of rotation, makes casing descending; When the center of turning cylinder 23 walks horizontal plane co-altitude with ladder, and the curved line of the stair climbing pedal II 24 of top does not walk when contacting with ladder, the curved line of a bit of for roll counter-clockwise on the facade walked at ladder until stair climbing pedal II 24 walks with ladder and contacts by stair climbing pedal I 22, casing is continued descending, at this moment supporter is shifted by stair climbing pedal I 22 is stair climbing pedal II 24; After supporter transfer, stair climbing pedal I 22 automatically resets under the effect of deadweight, and stair climbing pedal II 24 rotates counterclockwise around the strong point, turning cylinder 25 on it declines because of rotation, make casing descending further, until the horizontal plane that roller 1 and next one ladder walk contacts, after roller 1 becomes supporter again, stair climbing pedal II 24 automatically resets under Gravitative Loads, a ladder step that so far draw-bar box is descending.So repeatedly complete whole 6 work of going downstairs.Because stair climbing pedal has a bit of rolling time downstairs, this may bring slight impact, although to compare to existing stair-climbing device much smaller in this impact, still having can improvements.
Figure 16-Figure 19 is as the embodiment of a kind of improvement of the utility model stair climbing draw-bar box be respectively made up of two or more stair climbing pedals two sides (3) stair-climbing device, the radius of the stair climbing pedal II 24 of top is greater than the radius of the stair climbing pedal I 22 of adjacent lower edge, and stair climbing pedal I 22 is positioned at the inner side of stair climbing pedal II 24, the radius that distance between two stair climbing pedal rotating shafts is greater than following stair climbing pedal I 22 adds the radius of the rotation 25 of top stair climbing pedal II 24, do not interfere each other when two stair climbing pedals do 360 degree of rotations, when the angle of draw-bar box and horizontal plane is the angle of stair activity, the projection of adjacent two stair climbing pedals overlaps, and the height of the intersection point of two curved lines at its overlay region backrest surface 2 place is lower than the height at turning cylinder 23 center of following stair climbing pedal I 22, the projection of stair climbing pedal I 22 and the projection of roller 1 overlap, between the wheel rim of the roller 1 in its overlapping region and stair climbing pedal I 22 curved line, the intersection height at backrest surface 2 place is lower than the height at roller 1 wheel shaft center, time on draw-bar box after improvement downstairs, the supporter of casing is between two stair climbing pedals and shift more smooth-going between stair climbing pedal I 22 and roller 1, all without rolling, thus overcome the mild impulse produced because of rolling, almost without impact when making the utility model stair climbing draw-bar box is gone downstairs, run more steady.
For the draw-bar box that stair-climbing device respectively only has a stair climbing pedal 20 to form by two sides 3, when not using, stair climbing pedal 20 is rotated to arc upwards, whole stair climbing pedal 20 is positioned at region, side 3, and fix with pin, stair climbing pedal 20 is directly collected on the side 3 of draw-bar box, as shown in Figure 6.In like manner, for the draw-bar box that stair-climbing device is respectively made up of two or more stair climbing pedals two sides 3, when not using, each stair climbing pedal is rotated in region, side 3, and fix with pin, each stair climbing pedal is directly collected on the side 3 of draw-bar box.
Improve as to the one of collection mode, substitute the turning cylinder 21 of stair climbing pedal with bolt 27, bolt 27 head has a handle being convenient to hold, and the former axis hole for installing turning cylinder 21 in the side 3 of draw-bar box changes the screw suitable with bolt 27 into.On when downstairs using, fast stair climbing pedal 20 was connected on the side 3 of casing with bolt 27 in one minute, when not using, fast bolt 27 was unloaded in one minute, take off stair climbing pedal 20 and put into the bag being located at the back side 2 or front in the lump, this collection mode does not change the shape and size of existing draw-bar box, as shown in Figure 6.Same for the draw-bar box that stair-climbing device is respectively made up of two or more stair climbing pedals two sides 3, the turning cylinder of stair climbing pedal is substituted with bolt 27, for the length of the bolt 27 of the turning cylinder 25 of alternative stair climbing pedal II 24, the thickness of a pedal longer than the bolt 27 of the turning cylinder 23 of alternative stair climbing pedal I 22, bolt 27 head has a handle being convenient to hold, and the former axis hole for installing two turning cylinders in the side 3 of draw-bar box changes the screw suitable with bolt 27 into.During use, fast each stair climbing pedal is connected on the side 3 of casing with bolt 27, when not using, fast bolt 27 is unloaded, take off stair climbing pedal and put into the bag being located at the back side 2 or front in the lump.This collection mode does not change the existing shape and size of existing draw-bar box.This improvement also can reduce the distance between two stair climbing pedal rotating shafts, only need ensure that mutual when working is not interfered.
Improving another kind of the present utility model is with the connecting plate 28 of two rectangles, the several stair climbing pedals on each side 3 are clipped in central authorities to connect as a whole, respectively there are 2 stair climbing pedals each side 3 preferred to the utility model, with two connecting plates 28,2 stair climbing pedals being clipped in central authorities connects as a whole, and keep the relativeness between adjacent stair climbing pedal, form stair climbing pedal array 29, as shown in figure 20, the intersection point of the projection overlapping region between two stair climbing pedals is in the outside of connecting plate 28, the stair climbing pedal rotating shaft place of bottom and upper segment is all connected with connecting plate 28 by axle sleeve 30, connecting plate 28 has coaxial through-hole at axle sleeve 30 correspondence position, side 3 backrest surface 2 of casing is while there are two screws, the distance of holes and two through holes on stair climbing pedal array 29 are apart from equal, stair climbing pedal array 29 is connected on side 3, when the angle of draw-bar box and horizontal plane is the angle of stair activity, the outside of the curved line intersection point of the projection overlapping region of two stair climbing pedals 2 place planes overleaf, the projection of a following stair climbing pedal and the projection of roller 1 overlap, in overlapping region, the intersection point of backrest surface 2 is outside casing, as shown in figure 20.During use, be connected on side 3 fast with bolt by stair climbing pedal array 29, when not using, rapid removal bolt, takes off stair climbing pedal array 29 and puts into the bag being located at the back side 2 or front in the lump, realizes admittedly getting stair climbing pedal array 29 fast.
The embodiment that the stair-climbing device being enumerated above the utility model stair climbing draw-bar box is preferably respectively made up of one and two stair climbing pedals two sides 3, and the embodiment that stair-climbing device is respectively made up of two or more stair climbing pedal two sides 3 and preferred version similar, repeat no more.
As the improvement of the stair-climbing device to the utility model stair climbing draw-bar box in above-mentioned one and two parts, stair climbing roller 31 is adopted to substitute stair climbing pedal, stair climbing roller 31 is circular wheel, its radius is equal with the replaced fan-shaped radius of stair climbing pedal, and dependency relation remains unchanged, the stair climbing roller 31 of same radius circular is namely only adopted to substitute fan-shaped stair climbing pedal.Operation principle is identical with the utility model stair climbing draw-bar box that stair climbing pedal forms, just without the reset issues of stair climbing pedal.Figure 21 is the utility model stair climbing draw-bar box structure schematic diagram of stair climbing roller composition, and illustrating each side has three kinds of situations such as a stair climbing roller, two stair climbing rollers and the stair climbing roller array that is made up of two stair climbing rollers.
The utility model had both been applicable to the draw-bar box stair climbing of plane roller, and be also applicable to the draw-bar box stair climbing that roller is universal wheel, its principle is identical, as shown in figure 22.
The stair-climbing device that the utility model adopts is not only applicable to draw-bar box stair climbing, is also applicable to the utensil stair climbings such as loading-unloading vehicle (as shopping cart) and wheelchair.
Abundant description is done to the utility model stair climbing draw-bar box herein; do not deviating from utility model spirit and scope situation in this paper; can some amendments be done to the utility model and improve; this has the people of ordinary skill one is apparent, but all falls into the utility model protection domain.
Claims (8)
1. a stair climbing draw-bar box, comprises casing, roller (1), pull bar (4); Casing has two sides be parallel to each other (3), the front that a back side (2) is parallel with it with one, the end face that a bottom surface is parallel with it with, described casing is made up of case and case lid, case has part to be connected with case lid a side (3), and remainder is by slide fastener (5) folding; It is characterized in that: described stair climbing draw-bar box is provided with stair-climbing device, this device forms primarily of stair climbing pedal, described stair climbing pedal is fan-shaped, small end has an axis hole, described stair climbing pedal is movably connected on the side (3) of casing through this axis hole by turning cylinder, the stair climbing pedal moving axis that can rotate rotates and rotational plane is parallel with side (3), each side (3) has a stair climbing pedal at least, stair climbing pedal on two described sides (3) symmetry;
The stair-climbing device of described stair climbing draw-bar box respectively only has a stair climbing pedal to form by two sides (3), the installation site of the turning cylinder (21) of this stair climbing pedal (20) is higher than the wheel shaft installation site of roller (1), when the angle of described stair climbing draw-bar box and horizontal plane is the angle of stair activity, the height of the curved line end points of described stair climbing pedal (20) is higher than the height intending the highest ladder step of climbing, the contact point that stair climbing pedal (20) walks with ladder, the contact point projector distance in the horizontal direction walked with contiguous roller (1) and ladder is less than the degree of depth that ladder walks, described stair climbing pedal (20) is positioned at the outside of contiguous roller (1), its rotational plane is parallel with the rotational plane of contiguous roller (1), and a part for its fan-shaped curved line is in the outside of box back surface (2), minimum point on the fan-shaped curved line of stair climbing pedal (20) is higher than the minimum point of contiguous roller (1) wheel rim, the projection of described stair climbing pedal (20) overlaps with the projection of contiguous roller (1), the roll shell of its overlapping region in backrest surface (2) point of intersection and the outside incorporeity of pedal curved line,
The stair-climbing device of described stair climbing draw-bar box is respectively made up of two or more stair climbing pedals two sides (3), the installation site of the turning cylinder (23) of a stair climbing pedal I (22) is higher than the wheel shaft installation site of roller (1) bottom, when the angle of described stair climbing draw-bar box and horizontal plane is the angle of stair activity, topmost the height of the curved line end points of a stair climbing pedal II (24) is higher than the height intending the highest ladder step of climbing, adjacent two stair climbing pedals are not coplanar and parallel, stair climbing pedal I (22) is positioned at the outside of contiguous roller (1) bottom, its rotational plane is parallel with the rotational plane of contiguous roller (1), the radius that distance between the turning cylinder of adjacent two stair climbing pedals is greater than a stair climbing pedal adds the radius of a turning cylinder, described stair climbing pedal rotates mutually non-interference, curved line all some outsides in box back surface (2) of described each stair climbing pedal, the projection of adjacent two stair climbing pedals overlaps, in overlapping region, the intersection point of two curved lines is in the outside of box back surface (2), some is overlapping for the projection of described stair climbing pedal I (22) bottom and the projection of contiguous roller (1), the roller wheel rim of overlapping region backrest surface (2) point of intersection and the outside incorporeity of pedal curved line, minimum point on the fan-shaped curved line of stair climbing pedal I (22) is bottom higher than the minimum point of contiguous roller (1) wheel rim.
2. stair climbing draw-bar box according to claim 1, it is characterized in that: the fan-shaped central angle of described stair climbing pedal is less than 180 degree, fan-shaped is equipped with counterweight (26), and in a free state, fan-shaped another side raises up.
3. stair climbing draw-bar box according to claim 1, is characterized in that: described stair-climbing device respectively only has a stair climbing pedal (20) to form by two sides (3); When the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, the height of the height at turning cylinder (21) center of described stair climbing pedal (20) and the upper extreme point of the curved line of stair climbing pedal 20 is higher than the height intending the highest ladder step of climbing, and the curved line of part stair climbing pedal (20) and the upper extreme point of curved line are positioned at the outside of the back side (2) plane; The projection of described stair climbing pedal (20) overlaps with the projection of contiguous roller (1), and the intersection height between the roller wheel rim of its overlapping region backrest surface (3) and pedal curved line is lower than the height at roller (1) wheel shaft center.
4. stair climbing draw-bar box according to claim 1, it is characterized in that: described stair-climbing device is respectively made up of two or more stair climbing pedals two sides (3), the fan-shaped radius of the stair climbing pedal of top is greater than the fan-shaped radius of the stair climbing pedal of adjacent lower edge, and the stair climbing pedal of top is positioned at the outside of the stair climbing pedal of adjacent lower edge; When the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, the fan-shaped radius that distance between the turning cylinder of adjacent two stair climbing pedals is greater than following stair climbing pedal adds the turning cylinder radius of the stair climbing pedal of top, the projection of adjacent two stair climbing pedals overlaps, and the intersection height of its overlay region backrest surface (2) two curved line is lower than the height at the turning cylinder center of a following stair climbing pedal; The projection of a stair climbing pedal I (22) and the projection of roller (1) overlap bottom, the roller wheel rim in its overlapping region and between pedal curved line the intersection height of backrest surface (2) lower than the height at roller (1) wheel shaft center.
5. stair climbing draw-bar box according to claim 1, is characterized in that: when described stair-climbing device does not use, described stair climbing pedal is rotated to arc upwards, whole stair climbing pedal is positioned at described side (3) region, and fixes with pin.
6. stair climbing draw-bar box according to claim 1, it is characterized in that: the turning cylinder substituting stair climbing pedal with bolt (27), described bolt (27) head has a handle being convenient to hold, during use, fast stair climbing pedal is connected on the side (3) of casing with bolt (27), when not using, fast bolt (27) is unloaded, take off stair climbing pedal and put into the bag being located at the back side (2) or front in the lump.
7. stair climbing draw-bar box according to claim 4, it is characterized in that: described stair-climbing device is respectively made up of two or more stair climbing pedals two sides (3), with the connecting plate (28) of two rectangles, the several stair climbing pedals on each side (3) being clipped in central authorities connects as a whole, and keep the relativeness between adjacent stair climbing pedal, form stair climbing pedal array (29), the intersection point of the overlapping region between the projection of each stair climbing pedal is in the outside of connecting plate (28), topmost all be connected with connecting plate (28) by axle sleeve (30) with stair climbing pedal rotating shaft place bottom, connecting plate (28) has coaxial through-hole at axle sleeve (30) correspondence position, side (3) backrest surface (2) of casing is while there are two screws, the distance of two screws and two through holes on stair climbing pedal array (29) are apart from equal, stair climbing pedal array (29) is connected on side (3), when the angle of stair climbing draw-bar box and horizontal plane is the angle of stair activity, the outside of the curved line intersection point of the projection overlapping region of adjacent two stair climbing pedals (2) place plane all overleaf, the projection of a stair climbing pedal and the projection of roller (1) overlap bottom, in overlapping region, the intersection point of backrest surface (2) is outside casing, during use, be connected on side (3) fast with bolt by stair climbing pedal array (29), when not using, rapid removal bolt, takes off stair climbing pedal array (29) and puts into the bag being located at the back side (2) or front in the lump.
8. stair climbing draw-bar box according to any one of claim 1,3,4,6,7, it is characterized in that: described stair climbing pedal is substituted by stair climbing roller, described stair climbing roller is circular wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110264.2U CN204483336U (en) | 2015-02-15 | 2015-02-15 | Stair climbing draw-bar box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110264.2U CN204483336U (en) | 2015-02-15 | 2015-02-15 | Stair climbing draw-bar box |
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| Publication Number | Publication Date |
|---|---|
| CN204483336U true CN204483336U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520110264.2U Withdrawn - After Issue CN204483336U (en) | 2015-02-15 | 2015-02-15 | Stair climbing draw-bar box |
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| Country | Link |
|---|---|
| CN (1) | CN204483336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982411A (en) * | 2015-02-15 | 2016-10-05 | 杨祖成 | Draw-bar box |
| CN107334239A (en) * | 2016-04-28 | 2017-11-10 | 杨祖成 | Using the draw-bar box for quickly taking stair-climbing device admittedly |
-
2015
- 2015-02-15 CN CN201520110264.2U patent/CN204483336U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982411A (en) * | 2015-02-15 | 2016-10-05 | 杨祖成 | Draw-bar box |
| CN105982411B (en) * | 2015-02-15 | 2017-12-05 | 杨祖成 | Draw-bar box |
| CN107334239A (en) * | 2016-04-28 | 2017-11-10 | 杨祖成 | Using the draw-bar box for quickly taking stair-climbing device admittedly |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20171205 |
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| AV01 | Patent right actively abandoned |